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selftests/bpf: Make bpf_user_ringbuf_drain() selftest callback return 1

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In commit 1bfe26fb08 ("bpf: Add verifier support for custom callback
return range"), the verifier was updated to require callbacks to BPF
helpers to explicitly specify the range of values that can be returned.
bpf_user_ringbuf_drain() was merged after this in commit 2057156738
("bpf: Add bpf_user_ringbuf_drain() helper"), and this change in default
behavior was missed. This patch updates the BPF_MAP_TYPE_USER_RINGBUF
selftests to also return 1 from a bpf_user_ringbuf_drain() callback so
as to properly test this going forward.

Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20221012232015.1510043-3-void@manifault.com
This commit is contained in:
David Vernet 2022-10-12 18:20:15 -05:00 committed by Andrii Nakryiko
parent c92a7a5224
commit 6e44b9f375
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/bpf/progs/user_ringbuf_success.c
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@ -47,14 +47,14 @@ record_sample(struct bpf_dynptr *dynptr, void *context)
if (status) {
bpf_printk("bpf_dynptr_read() failed: %d\n", status);
err = 1;
return 0;
return 1;
}
} else {
sample = bpf_dynptr_data(dynptr, 0, sizeof(*sample));
if (!sample) {
bpf_printk("Unexpectedly failed to get sample\n");
err = 2;
return 0;
return 1;
}
stack_sample = *sample;
}